Income taxes (Tables)

12 Months Ended

Dec. 31, 2017

Schedule of Components of Income Tax Expense (Recovery)

The components of income tax expense (recovery) are as follows:

	Year ended			Year ended
	December 31,			December 31,
	2017			2016

Current income tax expense	$	161		$	-
Deferred income tax expense (recovery)		(588	)		210
Income tax expense (recovery)	$	(427	)	$	210

Schedule of Reconciliation of Effective Tax Rate

The Company’s effective rate of income tax differs from the statutory rate of 26.5% as follows:

	Year ended			Year ended
	December 31,			December 31,
	2017			2016

Tax recovery at statutory rates	$	(1,032	)	$	(1,330	)
Mexican mining royalty		199			210
Impact of foreign tax rates		18			215
Non-deductible expenses		535			1,477
Alternative minimum tax credits		(626	)		-
Losses not recognized (recognized)		479			(362	)
Income tax expense (recovery)	$	(427	)	$	210

Schedule of Components of Deferred Tax Liabilities

The Company’s net deferred tax liability relates to the Mexican mining royalty and arises principally from the following:

	December 31,		December 31,
	2017		2016

Property, plant and equipment	$	900	$	972
Total deferred tax liabilities		900		972

Alternative minimum tax credits		626		-
Other		28		138
Total deferred tax assets		654		138
Net deferred tax liabilities	$	246	$	834

Schedule of Components of Deferred Income Taxes not Recognized in Repect to Deductible Temporary Differences

Deferred income taxes have not been recognized in respect of the following deductible temporary differences, as management does not consider their utilization to be probable if the foreseeable future:

	December 31,		December 31,
	2017		2016

Property, plant and equipment	$	4,890	$	3,272
Mexican tax losses (expiring in 2018 - 2027)		42,843		52,702
Canadian tax losses (expiring in 2029 - 2037)		35,173		30,268
U.S. tax losses (expiring in 2020 - 2037)		32,070		29,764
Provisions and other		24,956		24,718
Deferred Mexican mining royalty		872		834
	$	140,804	$	141,558